I’ve had 3 babies and I started to show at different times with all of them. With my first 2 I started to show earlier on (because they were bigger) but with my last I was able to hide it til I was 20 weeks. (Well, I had people telling me I was still hiding my belly at 35 weeks, lol.) But my last was only 6 pd 9 oz so she was always small. But yeah, it all depends on how big you are to start with and how big bub is.